Answer: C. clean with soap and water
Explanation: all the rest are unsanitary
The answer is most probably C or none .
An advantage would be, knowing what exactly is in the food. A lot of the time it is also healthier as well to prepare your own food then buying it done already.
I would put down my equipment immediately out of harms way and rush over to that person and spot them. This way nothing bad can happen to that person.
